It’s not a computer science writing. It‘s personal philosophy blog posts.

Of course yes. The blog is about Rants, essays, and diatribes. The article in question could have been enriched with anecdotes; but even so, it would also be personal opinion, perhaps worth to ponder. I personally believe (to quote blazar) that the "Agile Imposition" is akin to "Perl Best Practices": something useful for some, in some situations, but sought to be imposed as standard, once and for all, by those driving the scheme. No science there, either.